Merge pull request #71 from DHTMLX/kullias-patch-2

[fix] incorrect example of uploadURL (corrupting local file ID stored…

Author: kullias

docs/api/config/js_kanban_editorshape_config.md

@@ -313,8 +313,7 @@ uploadURL: rec => {
         .then(res => res.json())
         .then(
             data => {
-                rec.id = data.id;
-                return data;
+                return { id: rec.id, ...data };
             },
             () => ({ id: rec.id, status: "error" })
         )